Class: HeapProfiler::DiffResults

Inherits:
AbstractResults show all
Defined in:
lib/heap_profiler/results.rb

Constant Summary collapse

TYPES = 
["allocated", "retained"].freeze

Constants inherited from AbstractResults

AbstractResults::GROUPED_METRICS, AbstractResults::GROUPINGS, AbstractResults::METRICS, AbstractResults::UNIT_PREFIXES

Instance Attribute Summary

Attributes inherited from AbstractResults

#dimensions, #types

Instance Method Summary collapse

Methods inherited from AbstractResults

#normalize_path, #print_output, #print_output2, #print_title, #scale_bytes

Constructor Details

#initialize(directory, types = TYPES, metrics = METRICS, groupings = GROUPINGS) ⇒ DiffResults

Returns a new instance of DiffResults.



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# File 'lib/heap_profiler/results.rb', line 160

def initialize(directory, types = TYPES, metrics = METRICS, groupings = GROUPINGS)
  @directory = directory
  @types = types
  @metrics = metrics
  @groupings = groupings
end

Instance Method Details

#dump_data(io, dimensions, type, metric, grouping, options) ⇒ Object 



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# File 'lib/heap_profiler/results.rb', line 208

def dump_data(io, dimensions, type, metric, grouping, options)
  print_title io, "#{type} #{metric} by #{grouping}"
  data = dimensions[type][grouping].top_n(metric, AbstractResults.top_entries_count)

  scale_data = metric == "memory" && options[:scale_bytes]
  normalize_paths = options[:normalize_paths]

  if data && !data.empty?
    data.each { |pair| pair[0] = normalize_path(pair[0]) } if normalize_paths
    data.each { |pair| pair[1] = scale_bytes(pair[1]) } if scale_data
    data.each { |k, v| print_output(io, v, k) }
  else
    io.puts "NO DATA"
  end
end

#dump_shape_edges(io, dimensions, _type, _options) ⇒ Object 



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# File 'lib/heap_profiler/results.rb', line 243

def dump_shape_edges(io, dimensions, _type, _options)
  top = AbstractResults.top_entries_count

  data = dimensions["shape_edges"].top_n(top)
  unless data.empty?
    print_title(io, "Shape Edges Report")

    data.each do |edge_name, count|
      print_output io, count, edge_name
    end
  end
end

#dump_strings(io, dimensions, type, options) ⇒ Object 



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# File 'lib/heap_profiler/results.rb', line 224

def dump_strings(io, dimensions, type, options)
  normalize_paths = options[:normalize_paths]
  scale_data = options[:scale_bytes]
  top = AbstractResults.top_entries_count

  print_title(io, "#{type.capitalize} String Report")

  dimensions["strings"].top_n(top).each do |string|
    memsize = scale_data ? scale_bytes(string.memsize) : string.memsize
    print_output2 io, memsize, string.count, @colorize.string(string.value.inspect)
    string.top_n(top).each do |string_location|
      location = string_location.location
      location = normalize_path(location) if normalize_paths
      print_output2 io, '', string_location.count, location
    end
    io.puts
  end
end

#pretty_print(io = $stdout, **options) ⇒ Object 



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# File 'lib/heap_profiler/results.rb', line 167

def pretty_print(io = $stdout, **options)
  diff = Diff.new(@directory)
  heaps = @types.each_with_object({}) { |t, h| h[t] = diff.public_send("#{t}_diff") }
  index = Index.new(diff.allocated)

  color_output = options.fetch(:color_output) { io.respond_to?(:isatty) && io.isatty }
  @colorize = color_output ? Polychrome : Monochrome

  dimensions = {}
  heaps.each do |type, heap|
    analyzer = Analyzer.new(heap, index)
    dimensions[type] = analyzer.run(@metrics, @groupings)
  end

  dimensions.each do |type, metrics|
    io.puts "Total #{type}: #{scale_bytes(metrics['total'].memory)} " \
            "(#{metrics['total'].objects} objects)"
  end

  @types.each do |type|
    @metrics.each do |metric|
      next unless GROUPED_METRICS.include?(metric)
      @groupings.each do |grouping|
        dump_data(io, dimensions, type, metric, grouping, options)
      end
    end
  end

  if @metrics.include?("strings")
    @types.each do |type|
      dump_strings(io, dimensions[type], type, options)
    end
  end

  if @metrics.include?("shape_edges")
    @types.each do |type|
      dump_shape_edges(io, dimensions[type], type, options)
    end
  end
end